H

HA          Home Address

HA          Host Agent

HADA        High Availability Disk Array

HCL         Hue, Chroma, and Luminance

HDA         Head-Disk Assembl

HDBV        Host Data Base View

HDLC        High Level Data Link Communications

HDSL        High-bit rate Digital Subscriber Loop

HDTV        High Definition TV

HE          High End (system)

HGC         Hercules Graphics Card

HIC         Host Interface Computer

HLL         High Level Language

HLS         Hue-Lightness-Saturation

HMD         Head-Mounted Display

HMMP        HyperMedia Management Protocol

HMMS        HyperMedia Management Schema

HPCL        Hewlett-Packard Control Language

HPFS        High Performance File System

HPGL        Hewlett-Packard Graphical Language

HPR         High Performance Routing

HR          Horizontal Rule

HSB         Hue-saturation-brightness

HSELAN      High Speed ELAN

HSI         Hue-Saturation-Intensity

HSLAN       High Speed LAN

HSSI        High Speed Serial Interface

HSV         Hue-Saturation-Value

HT          Horizontal Tab

HTML        Hypertext Markup Language

HTTP        Hypertext Transfer Protocol

Hz          Hertz